Table 1. North Yukon Regional Land Use Plan integrated management area (IMA) zoning system and recommended cumulative effects (CE) indicator levels. Adapted from Yukon Government and Vuntut Gwitchin Government (2009).

IMAzone

Managementintent

Description

CEindicator

Cautionarylevel
†

Criticallevel

Zone I

Lowestdevelopment

Very high ecological and heritage/cultural
values within a sensitive biophysical setting. Maintaining ecological integrity
and protecting heritage and cultural resources is the priority. All-season
industrial infrastructure is discouraged.

Surfacedisturbance

0.075%

0.1%

Lineardensity

0.075 km/km²

0.1 km/km²

Zone II

Lowdevelopment

High ecological and heritage/cultural values
within a moderately sensitive biophysical setting. Maintaining ecological
integrity, protecting heritage and cultural resources, and minimizing land use
impacts is the priority.

Surfacedisturbance

0.15%

0.2%

Lineardensity

0.15 km/km²

0.2 km/km²

Zone III

Moderatedevelopment

Moderate ecological and heritage/cultural
values within a moderately sensitive biophysical setting. Conservative levels of
land use are consistent with Zone III objectives.

Surfacedisturbance

0.375%

0.5%

Lineardensity

0.375 km/km²

0.5 km/km²

Zone IV

Highestdevelopment

Lower ecological and heritage/cultural values
within a moderately sensitive biophysical setting. Higher levels of land use are
consistent with Zone IV objectives.

Surfacedisturbance

0.75%

1.0%

Lineardensity

0.75 km/km²

1.0 km/km²

†Cautionary
cumulative effects indicator level is established as 75% of the upper or
critical level. Indicator levels are calculated for each landscape management
unit of the Integrated Management Area.